Chassis Mount: Control Transformer

Web: www.TriadMagnetics.com

Phone 951-277-0757

Fax 951-277-2757

460 Harley Knox Blvd.

Perris, California

92571

Publish Date: December 4, 2013

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F-399U

Electrical Specifications (@25C)

1. Maximum Power: 192.0 VA

2. Primary:

Series: 230V 50/60 Hz

Parallel: 115V 50/60 Hz

3. Secondary:

Series: 24.0VCT @ 6.0 Amps

Parallel: 12.0VCT @ 12.0 Amps

4. Voltage Regulation: 10 % TYP @ full load to no load

5. Temperature Rise: 35C TYP (45C MAX allowed)

Description:

The F-399U transformer is part of a series of Triad Control transformers that have secondary

voltages that are commonly utilized in various electronic, electro-magnetic and electrical control

systems. These include such applications as use with relays, solenoids, small motors, speed

changers, pumps, heating elements, control valves for fluid and gases, fans, blowers, electronic

tubes, automatic assembly equipment, recording devices, elevators, door openers, low voltage

lamps, etc.

Construction:

Wound on a single channel nylon bobbin. Materials are UL recognized, Class B (130º C) rated.

Safety:

These products are 100% hipot tested with an insulation of 1500V between primary and

secondary windings as well as between the primary / secondary windings and the core.

Dimensions:

Units: In inches

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4.750

3.125

3.50

2.50

2.875

Mounting Holes: 0.203 x 0.375”

Weight:

5.90 lbs

Schematic:

Primary:

Series: 1 to 4, Jumper 3 to 2

Parallel: 1 to 3, Jumper 1 to 2 and 3 to 4

Secondary:

Series: 5 to 8, Jumper 7 to 6

Parallel: 5 to 7, Jumper 5 to 6 and 7 to 8

RoHS Compliance: As of manufacturing date February 2005, all standard products meet

the requirements of 2011/65/EU, known as the RoHS initiative.

* Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics’

website for the most current version.